From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- fs/ext2/acl.h | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 fs/ext2/acl.h (limited to 'fs/ext2/acl.h') diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h new file mode 100644 index 000000000000..fed96ae81a7d --- /dev/null +++ b/fs/ext2/acl.h @@ -0,0 +1,82 @@ +/* + File: fs/ext2/acl.h + + (C) 2001 Andreas Gruenbacher, +*/ + +#include + +#define EXT2_ACL_VERSION 0x0001 + +typedef struct { + __le16 e_tag; + __le16 e_perm; + __le32 e_id; +} ext2_acl_entry; + +typedef struct { + __le16 e_tag; + __le16 e_perm; +} ext2_acl_entry_short; + +typedef struct { + __le32 a_version; +} ext2_acl_header; + +static inline size_t ext2_acl_size(int count) +{ + if (count <= 4) { + return sizeof(ext2_acl_header) + + count * sizeof(ext2_acl_entry_short); + } else { + return sizeof(ext2_acl_header) + + 4 * sizeof(ext2_acl_entry_short) + + (count - 4) * sizeof(ext2_acl_entry); + } +} + +static inline int ext2_acl_count(size_t size) +{ + ssize_t s; + size -= sizeof(ext2_acl_header); + s = size - 4 * sizeof(ext2_acl_entry_short); + if (s < 0) { + if (size % sizeof(ext2_acl_entry_short)) + return -1; + return size / sizeof(ext2_acl_entry_short); + } else { + if (s % sizeof(ext2_acl_entry)) + return -1; + return s / sizeof(ext2_acl_entry) + 4; + } +} + +#ifdef CONFIG_EXT2_FS_POSIX_ACL + +/* Value for inode->u.ext2_i.i_acl and inode->u.ext2_i.i_default_acl + if the ACL has not been cached */ +#define EXT2_ACL_NOT_CACHED ((void *)-1) + +/* acl.c */ +extern int ext2_permission (struct inode *, int, struct nameidata *); +extern int ext2_acl_chmod (struct inode *); +extern int ext2_init_acl (struct inode *, struct inode *); + +#else +#include +#define ext2_permission NULL +#define ext2_get_acl NULL +#define ext2_set_acl NULL + +static inline int +ext2_acl_chmod (struct inode *inode) +{ + return 0; +} + +static inline int ext2_init_acl (struct inode *inode, struct inode *dir) +{ + return 0; +} +#endif + -- cgit